A person who makes, crafts, or works with heaumes; an armorsmith specializing in great helms.
From 'heaume' plus the agent suffix '-er' (Old English '-ere'). Medieval craftspeople received specific names based on their specialization—bowyer, tanner, armorer.
Heaumers were specialized craftspeople in the medieval guild system, as distinct from general armorers. Their narrow specialization reflects how stratified medieval manufacturing was—one person didn't 'make armor,' they made specifically helmets or specifically pauldrons.
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